The damaging effects of the acidity in PEDOT:PSS on semiconductor device performance and solutions based on non-acidic alternatives,Materials Horizons

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The damaging effects of the acidity in PEDOT:PSS on semiconductor device performance and solutions based on non-acidic alternatives
Materials Horizons ( IF 12.2 ) Pub Date : 2020-03-24 , DOI: 10.1039/c9mh01978b
Joseph Cameron _{1,

2,

3,

4,

5} , Peter J. Skabara _{1,

2,

3,

4,

5}

Affiliation

Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate), PEDOT:PSS, has been widely used as an effective hole transporting material in many different organic semiconductor devices for well over a decade. However, despite having many strong features which make this material such a popular hole transport/injection layer, PEDOT:PSS is well-known to cause degradation in devices and limit their stability due to the acidity of the PSS chain. This review focusses on the attempts that have been made to combat this problem, with different strategies explored, including the development of neutral analogues, use of alternative materials and the introduction of barrier layers to prevent degradation of the electrode. Since solution-processing is a key advantage of using PEDOT:PSS, we concentrate on analogous materials that can also be solution-processed, with particular attention on whether orthogonal processing can be retained. We intend this work to be a useful guide for researchers considering enhanced device lifetimes, an important parameter when considering organic semiconductor devices for commercialisation.

中文翻译：

PEDOT：PSS中酸度对半导体器件性能的破坏作用以及基于非酸性替代物的解决方案

十多年来，聚（3,4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐），PEDOT：PSS被广泛用作许多不同有机半导体器件中的有效空穴传输材料。但是，尽管具有许多使该材料成为流行的空穴传输/注入层的强大功能，但众所周知PEDOT：PSS会导致器件性能下降，并由于PSS链的酸性而限制其稳定性。这篇综述集中在为解决这个问题而进行的尝试，探索了不同的策略，包括开发中性类似物，使用替代材料以及引入阻挡层以防止电极降解。由于固溶处理是使用PEDOT：PSS的主要优势，因此我们专注于也可以固溶处理的类似材料，特别注意是否可以保留正交处理。我们希望这项工作对考虑延长器件寿命的研究人员来说是一个有用的指导，这是考虑将有机半导体器件商业化时的重要参数。

更新日期：2020-03-24

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